1. Manuals
  2. Brands
  3. Miteq Manuals
  4. Media Converter
  5. D-9301
  6. Operation and maintenance manual

Miteq D-9301 Operation And Maintenance Manual

9300 series downconverter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Ref.:
XXXXX
OPERATION AND MAINTENANCE MANUAL
FOR
D-9301 DOWNCONVERTER
AUGUST 2004
CUSTOMER
MAXXXXXD
114087F
Rev.B

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the D-9301 and is the answer not in the manual?

Questions and answers

Related Manuals for Miteq D-9301

Summary of Contents for Miteq D-9301

  • Page 1 Ref.: XXXXX OPERATION AND MAINTENANCE MANUAL D-9301 DOWNCONVERTER AUGUST 2004 CUSTOMER MAXXXXXD 114087F Rev.B...
  • Page 2 This number should be referred to in all correspondence and all referrals to spare parts. The reference number is XXXXX. The D-9301 (9300 Series) Downconverter (MITEQ reference XXXXX) has been supplied with the following options: AC Power: XXX VAC...
  • Page 3 TABLE OF CONTENTS SECTION 1 INTRODUCTION Para. Page GENERAL DESCRIPTION ....1.1.1 PHYSICAL ....1.1.2 FUNCTIONAL .

  • Page 4: Table Of Contents

    TABLE OF CONTENTS (Cont.) SECTION 3 OPERATION Para. Page INTRODUCTION ....CONTROLS ..... 3.2.1 EXTERNAL CONTROLS .
  • Page 5 TABLE OF CONTENTS (Cont.) SECTION 3 OPERATION Para. Page 3.3.2 REMOTE OPERATION Cont'd. 3.3.2.9 IEEE 488 Control ... . 3-11 3.3.2.9.1 Device Address/Service Request Enable 3-11 3.3.2.9.2 Data Input Messages .
  • Page 6 TABLE OF CONTENTS (Cont.) SECTION 4 PRINCIPLES OF OPERATION INTRODUCTION ....FUNCTIONAL DESCRIPTION ....SUBSYSTEMS AND COMPONENTS FUNCTIONAL DESCRIPTION 4.3.1 SIGNAL PATH...
  • Page 7 Front View, D-9301 Downconverter ..Rear View, D-9301 Downconverter ..Interior View, D-9301 Downconverter ..Front Panel Layout, 9300 Series Converter ..

  • Page 8: General Description

    INTRODUCTION GENERAL DESCRIPTION 1.1.1 PHYSICAL The physical configuration of the D-9301 Downconverter is shown in Figures 1-1 through 1-3. The main chassis houses all RF components, control circuitry and power supplies. The converter chassis is 19" x 22" x 3.5" panel height.
  • Page 9 Local Oscillator Data Out-of-Lock Alarms Entry Keypad Display Memory Remote A1A2 Recall Mode AC Power Memory Select Gain On/Off Store Adjust Switch Potentiometer Figure 1-1. Front View, D-9301 Downconverter...
  • Page 10 Local Oscillator Test Points Summary A1A1 Address A1A5 Alarm AC Voltage Select DC Voltage Input/Fuse Test Points Ground Redundant IF Output Switching RF Input Remote Interface Figure 1-2. Rear View, D-9301 Downconverter...
  • Page 11 A1A4 A1A1 A1A3 A1A2 A3A2 A1A5 A4A1B A3A1 A3A6 A3A7 A2A8 A2A1 A2A2 A3A5 A2A6 A3A3 A2A4 A3A4 A2A3 A2A5 A2A7 Figure 1-3. Interior View, D-9301 Downconverter...

  • Page 12: Functional

    LO Phase Lock Voltage Test Points DC Voltage Test Points 1.1.2 FUNCTIONAL The MITEQ 9300 Series Converter combines a state of the art communications converter with microprocessor-controlled digital circuitry to provide flexibility and convenience for the station operator. The converter translates the 3.7-4.2 GHz frequency band to the 70 ±20 MHz output frequency band.

  • Page 13: Equipment Characteristics

    EQUIPMENT CHARACTERISTICS 1.2.1 PHYSICAL Weight: 30 pounds nominal Overall Dimensions: 19" x 22" x 3.5" panel height Signal Input Connector (J1): N female Signal Output Connector (J2): BNC female Summary Alarm Connector (J3): DE-9P Remote Interface Connector (J6) - RS485/RS422: DE-9S RS232: DB-25P...

  • Page 14: Functional

    1.2.2 FUNCTIONAL Gain, Frequency Response - Input Frequency: 3.7-4.2 GHz Output Frequency: 70 ±20 MHz Gain: 30 dB nominal Nominal Gain Converter Option Gain Number (dB) Amplitude Response: ±20 MHz at 0.5 dB ±18 MHz at 0.4 dB Gain Adjustment: 6 dB nominal (no options) 30 dB minimum (Option 3C) Group Delay (±18 MHz) -...
  • Page 15 Noise Figure: 12 dB maximum Image Rejection: 80 dB maximum Spurious - Dependent: -65 dBc Independent: -90 dBm inband (no options) -75 dBm inband (Option 16A) -65 dBm inband (Option 16C) Frequency Selection: 3.7-4.2 GHz in 125 kHz increments Channel Memories: 30 (non-volatile) Primary Power: Selectable at the rear panel...
  • Page 16 Summary Alarm Connector (J3) Pin Designations - DC Power Status - Normal: 1-2 open, 2-3 closed Fault: 1-2 closed, 2-3 open Summary Alarm - Normal: 4-5 open, 5-6 closed DC Power Normal and Local Oscillators In-Lock and LO Level Normal (Option 8 Only) Alarm: 4-5 closed, 5-6 open DC Power Fault or Local Oscillator(s) Out-of-Lock...

  • Page 18: Unpacking, Storage, Reshipment

    SECTION 2 INSTALLATION UNPACKING, STORAGE, RESHIPMENT Carefully open the shipping container and remove the equipment. Weight of the converter is approximately 30 pounds. Inspect the equipment thoroughly and report any damage. If the equipment is to be stored, it should be wrapped in plastic and kept in a clean, dry place.

  • Page 20: Introduction

    SECTION 3 OPERATION INTRODUCTION The following paragraphs describe the controls, adjustments and procedures for turn-on, operation, emergency operation and shut down of the converter. CONTROLS 3.2.1 EXTERNAL CONTROLS (Figures 1-1, 1-2 and 3-1) On/Off switch (A1A2) applies AC power to the converter Fuse (A1A1): 2.0A for 100 and 120 VAC 1.0A for 220 and 230/240 VAC...

  • Page 22: Internal Controls

    Remote Mode Select Switch When remote control is installed, the front panel "REMOTE" switch selects either Local (front panel) or Remote mode of operation. Channel Memory The converter has thirty memories for frequency settings numbered 00 to 29. 3.2.2 INTERNAL CONTROLS (Figure 1-3) Power Supply Voltage Adjustment Adjustment of the DC power supplies within the specified tolerances may be made using an insulated tuning tool (refer to...

  • Page 23: Operating Procedure

    OPERATING PROCEDURE 3.3.1 LOCAL OPERATION (See Figure 3-1) When remote control is installed, the front panel "REMOTE" switch selects either Local (front panel) or Remote mode of operation. Depressing the "REMOTE" panel switch will place the converter in the remote operation mode. A LED on the panel will light to indicate remote mode.

  • Page 24: Remote Operation

    3.3.2 REMOTE OPERATION When remote control is installed, the front panel "REMOTE" switch selects either Local (front panel) or Remote mode of operation (see Section 3.3.1). 3.3.2.1 RS422/485 Protocol All transmissions are multi-byte sequences beginning with a header byte and ending with a trailer byte and checksum byte. The transmitted bytes are all ASCII printable characters in the range of 20H to 7EH.

  • Page 25: Data Transfer

    3.3.2.2 Data Transfer The general message format is as follows: HEADER - DEVICE ADDRESS - COMMAND/ERROR CODE - PARAMETERS (if required) - TRAILER - CHECKSUM The response time from Command to acknowledge is 100 ms. maximum. Since all bytes are ASCII printable characters, a compatible terminal may be used to control the converter or monitor traffic on the communication bus.

  • Page 26: Parameter Bytes

    3.3.2.2.4 Parameter Bytes Parameters are numeric characters which are sent MSD first, LSD last. Non-numeric parameters such as ",", "." or values beyond the range of the converter will be rejected and cause the converter to respond with error code "b". 3.3.2.2.5 Trailer Byte The Trailer byte is 7DH, ASCII character "}".

  • Page 27: Status All Code = A

    3.3.2.3.3 Status All Code = A The Status All command requires no parameters. The converter responds in both Local and Remote mode with the converter frequency, and remote/local, mute, and component fault status. Remote Command: Converter Response: AFffffffffL1Mm?abcdef Status All indicator Frequency indicator fffffff(f): 7 or 8 digit ASCII numeric character indicating...

  • Page 28: Device Address/Baud Rate Selection

    3.3.2.4 Device Address/Baud Rate Selection The device address is set with a DIP switch on the rear panel. S1, 2, 3, 4 and 5 select the five LSBs of the address in binary (switch off = "1", switch on = "0", S1 = LSB.) The two MSBs are permanently set to "10"...

  • Page 29: Remote Interface Connector

    3.3.2.6 Remote Interface Connector RS422/485* - J6-1 Ground Data Out - Data In - Data Out + Data In + * For RS485 two wire party line operation DATA IN + must be externally wired to DATA OUT +, and DATA IN - externally wired to DATA OUT -. RS232 - J6-1 Ground...

  • Page 30: Rs422/485 Bus Termination

    3.3.2.7 RS422/485 Bus Termination (See Figure 3-2) Jumper selectable, 120 ohm termination resistors are connected across the DATA IN +/- and DATA OUT +/- terminals. Installing E1 places the resistor across the DATA OUT terminals and installing E2 places the resistor across the DATA IN terminals. 3.3.2.8 Contact Closure Control Inputs to the rear panel interface connector (J6) are...

  • Page 31: Set/Store Frequency In Channel Nn

    3.3.2.9.2.2 Mute The Mute message mutes the RF output of the converter. 3.3.2.9.2.3 Set/Store Frequency in Channel nn This message is similar to the Frequency Set message. It sets the converter to the specified frequency in kHz, unmutes the converter and stores the frequency in channel memory "nn". S01F14000125 (8 digit frequency stored in Channel 01) S25F3712500...

  • Page 32: Status Faults Format

    3.3.2.9.2.7 Status Faults Format Data Format Converter Response ?abcdef Status indicator a-f: 0 = no fault, 1 = fault a through f indicate the status of the six component fault lines Synthesizer Alarm LOA Alarm LOB Alarm Power Supply Alarm LO1 Level Detect LO2 Level Detect The Status Alarm readout option is required for this format.

  • Page 33: Service Request

    3.3.2.9.2.10 Service Request The converter will issue a service request (activate the SRQ line) when one of the status alarm lines indicate a failure. IEEE 488 Controller responds by sending the SPE message (Serial Poll) and addresses the unit to talk. The converter responds with the following message: Bit No.

  • Page 35: Principles Of Operation

    SECTION 4 PRINCIPLES OF OPERATION INTRODUCTION The following paragraphs provide information on the principles of operation of the MITEQ Model D-9301 Downconverter. Overall functional operation of the system is discussed in Paragraph 4.2 and detailed principles of operation for the individual subassemblies are presented in Paragraph 4.3.

  • Page 39: Subsystems And Components Functional Description

    SUBSYSTEMS AND COMPONENTS FUNCTIONAL DESCRIPTION 4.3.1 SIGNAL PATH 4.3.1.1 Input Filter, Isolator (A2A1, A2A2, A2A3) A2A1 - Description: Isolator Part Number: 111907-1 Specifications - Frequency: 3.62-4.2 GHz Insertion Loss: 0.3 dB Input/Output VSWR: 1.1:1 Isolation: 23 dB minimum Connectors - Input: N female Output:...

  • Page 40: Mixer, First Conversion (A2A4)

    A2A3 - Description: Isolator Part Number: 111907-2 Specifications - Frequency: 3.62-4.2 GHz Insertion Loss: 0.3 dB Input/Output VSWR: 1.1:1 Isolation: 23 dB minimum Connectors: SMA female 4.3.1.2 Mixer, First Conversion (A2A4) Part Number: M30-3.95-1.1-XXXXX Function: Frequency translation Design: Double balanced Specifications - Input Frequency: 3.7-4.2 GHz...

  • Page 41: Amplifier, Isolator, Filter

    4.3.1.3 Amplifier, Isolator, Filter (A2A5 to A2A7) A2A5 - Description: Amplifier Part Number: 113938-1.1-XXXXX Function: System gain Design: Low noise, two stage bipolar Specifications - Frequency: 1100 ±30 MHz Gain: 25 dB nominal VSWR Input/Output: 1.2:1 Power Output (1 dB Compression): +10 dBm Noise Figure: 3 dB nominal...
  • Page 42 A2A7 - Description: Filter Part Number: FLT-106890-1.1-XXXXX Function: IF passband, out of band rejection Design: Eight pole rod combline bandpass Specifications - Frequency: 1100 ±20 MHz Insertion Loss: 1.0 dB VSWR Input/Output: 25 dB Parabolic Group Delay: 3 nsec ±20 MHz Rejection: 45 dB ±70 MHz Connectors -...

  • Page 43: Downconverter Module (A2A8)

    4.3.1.4 Downconverter Module (A2A8) Part Number: DM675-1100-70-XXXXX Description: Downconverter Module Function: Provide a well matched system output, frequency translation, gain and gain control. Design: Integrated assembly Specifications - Frequency - Input: 1100 ±20 MHz Output: 50-90 MHz 1170 MHz at +10 dBm Gain: 16 dB nominal 31 dB nominal (Option 16A)

  • Page 44: Local Oscillator

    4.3.2 LOCAL OSCILLATOR 4.3.2.1 5 MHz Reference (A3A1) Part Number: 115249-XXXXX The dual output 5 MHz crystal oscillator is a highly stable precision crystal oscillator enclosed in a proportionally- controlled oven housing. The specifications of the crystal oscillator are: Frequency: 5.000000 MHz Power Outputs: 0±3 dBm...

  • Page 45: Frequency Synthesizer (A3A2)

    4.3.2.2 Frequency Synthesizer (A3A2) The microwave frequency synthesizer incorporates multiple loop, digital phase locking techniques to produce an RF output frequency in steps of 125 kHz. Phase lock loop bandwidths are adjusted for best overall phase noise performance. Due to the complexity of the microwave synthesizer, it is recommended that all service be referred to the factory.

  • Page 46: 1170 Mhz Phase Locked Source (A3A6)

    4.3.2.3 1170 MHz Phase Lock Source (A3A6) Part Number: DPLO-5-1170-20P-XXXXX Alternate Part Number: 115162-1170-XXXXX The phase lock source consists of: Fundamental VTO (1170 MHz) Frequency divider (÷234) Phase detector Phase lock alarm circuit A functional block diagram is shown in Figure 4-2. A sample of the VTO is directed through the frequency divider and then to the phase detector.

  • Page 48: Converter Controller

    4.3.3 CONVERTER CONTROLLER The Converter Controller board contains the microcomputer and analog circuitry necessary to control the LCD display, accept data from the front panel keys, control the frequency synthesizer, monitor status signals from the critical converter components, control the muting and alarm relays and provide a remote bus interface (e.g.

  • Page 49: Power Supply, Low Pass Filter

    4.3.4 POWER SUPPLY, LOW PASS FILTER The complete manual for the power supply is given in Appendix A. MITEQ Part Number - PS120-FS05-113-XXXXX Power One Part Number - FS05-113 The power supply is divided into three sections: +5.2 volts for the Converter Controller only Voltage Setting Tolerance: ±0.10 volts...

  • Page 50: Introduction

    SECTION 5 MAINTENANCE INTRODUCTION This section includes information and instructions for periodic monitoring of converter performance, information for troubleshooting, alignment and adjustment of the converter in case of converter malfunction. PREVENTIVE MAINTENANCE The converter is a completely solid state design. Normal periodic inspection for cleanliness and mechanical integrity should be made in accordance with standard procedures.

  • Page 52: Gain Of The Converter

    5.2.2 GAIN OF THE CONVERTER The following procedure is to be followed for gain measurements. Connect the test equipment as shown in Figure 5-1. Set the sweeper to cover the required input frequency range. Set the attenuator on the log memory scope to 000 and memorize the input reference.

  • Page 53: Corrective Maintenance

    CORRECTIVE MAINTENANCE If the converter malfunctions during normal use or if the tests in Section 5.2 reveal excessive discrepancies in converter gain or local oscillator frequency or test point voltage, isolation and correction of the malfunction becomes necessary. While it is difficult to fully anticipate and describe all possible failure modes in a complicated electronic system, this manual contains sufficient information in the form of theory of operation and diagrams to enable an experienced technician to...

This manual is also suitable for:

U-9353

Table of Contents